Robert Boschgmbh

Seg Automotive Germany Gmbh

Jansen, Sebastian

Rokusek, Petr

Sebastian Jansen

Juergen Gross

Olaf Ohlhafer

Marc Eschenhagen

Rolf Jaros

Axel Reuter

Detlev Straub

Andreas Jacob

Georg Kurz

Petr Rokusek

Sergey Solovyev

A method for measuring the temperature of a permanent magnet disposed on a rotor of an electrical machine, a magnetic property of the permanent magnet dependent on the temperature of the permanent magnet being sensed and the temperature of the permanent magnet being ascertained therefrom, and to an electrical machine, a processing unit, and a computer program for carrying it out.

Measuring the temperature of the rotor of an electrical machine

A method for operating an energy supply unit for a motor vehicle electrical system, including at least one first subsystem and one second subsystem having different voltage levels, the energy supply unit including an electric machine which is connected via a converter circuit to the first subsystem and the second subsystem. In a first operating mode, a switchable switch element of the converter circuit which connects the converter circuit to the second subsystem is opened, the converter circuit is activated as an inverter circuit and the electric machine is motor or generator operated. In a second operating mode, the switchable switch element of the converter circuit is closed, the converter circuit is activated as a DC-DC converter and the DC-DC conversion takes place between the voltage levels of the first and the second subsystem.

Method for operating an energy supply unit for a motor vehicle electrical system

A method for operating a power supply unit for an electrical system of a motor vehicle, the power supply unit having an electric generator having a stator having a stator winding and a rotor having a rotor winding, as well as a field current controller assigned to the rotor winding for selecting the setpoint of the current flowing through the rotor winding; the electric generator being set into rotation without a current being specified by the rotor winding, thereby generating a starting voltage; at least one component of the power supply unit or of the vehicle electrical system being energized by the starting voltage.

Method for operating a power supply unit for an electrical system of a motor vehicle

A vehicle having an internal combustion engine, a transmission having multiple gears and a transmission input shaft, and a recuperation system for recovering electrical energy, the recuperation system being configured for changing a speed value of the internal combustion engine during a gear change from an actual gear into a setpoint gear to a speed value of the transmission input shaft in the setpoint gear.

Vehicle having a recuperation system

A valve system is described for high-pressure fuel injection, including a pilot valve which has a pilot valve needle, a pilot valve seat and a pressure chamber, an electromagnetic actuator for actuating the pilot valve needle, and a main valve which has at least one spray hole, a closing element, a support piston and a pressure compensating chamber, the closing element having a receiving chamber for the purpose of accommodating the support piston and the pressure compensating chamber being provided in the receiving chamber of the closing element, the pilot valve seat being provided on the closing element, and the pilot valve establishing a connection between the pressure chamber and the pressure compensating chamber for the purpose of reducing an opening force for the main valve.

Valve system

Growing community of inventors

Ludwigsburg, Germany

Sebastian Jansen